2 - thread-proof / separate the listen loop
3 - change verbose to dropdown with output levels: normal, verbose, silent
4 - allow 'output level' to be changed while listening
6 - have listen on startup automatically save to defaults
7 - add "what's this?" as a button
10 - add README with advice on configure's parameters and how to call help
12 - update documentation
16 - make portage file for pro-audio overlay
17 - base prefix on jackd's path?